EnergyPack 757B21 is an external, interchangeable lithium-ion battery that has a charge that lasts up to three days. Smaller than EnergyPack 757B20, it is the ideal choice for patients with long residual limbs or when weight and size are a consideration.

Otto Bock EnergyPack

EnergyPack 757B21 is an external, interchangeable lithium-ion battery that has a charge that lasts up to three days. Smaller than EnergyPack 757B20, it is the ideal choice for patients with long residual limbs or when weight and size are a consideration.